Erratum to “Organic vegetable cultivation reduces N leaching while increasing the relative soil N budget” [Agric. Water Manag. 213 (2019) 803–808]

• Published in: Agricultural water management Vol. 223; p. 105607
• Main Authors: Han, Hui, Ding, Guo-chun, Li, Xue-xian, Hu, Ke-lin, Yang, He-fa, Xu, Ting, Li, Ji
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 20.08.2019
• Subjects: Greenhouse production; Nitrate; Nitrogen surplus; Nitrous oxide; Soil water leachate; Total nitrogen; Nitrous oxide; Nitrate; Total nitrogen; Nitrogen surplus; Greenhouse production; Soil water leachate
• ISSN: 0378-3774; 1873-2283
• DOI: 10.1016/j.agwat.2019.04.024

•ORG significantly increased surface soil total N contents and vegetable yield.•N leaching (9.8%-18.1% of N inputs) was the primary N loss pathway in three systems.•ORG markedly reduced yield-scaled nitrous oxide emissions and cumulative N leaching. Excessive nitrogen application has caused serious environmental problems in the vegetable field. Based on a 12-year greenhouse trial of organic (ORG), low-input (LOW) and conventional (CON) vegetable production in northern China, a two-year study on nitrogen (N) budget was conducted to evaluate N management and its environmental impact. The main results were as follows: 1) total N contents in the 0-20 cm soil layer were significantly higher in ORG; 2) ORG statistically increased vegetable yield and decreased yield-scaled nitrous oxide emissions; 3) N leaching was the primary N loss pathway in three systems and ORG significantly reduced N leaching intensities (the ratio of cumulative N leaching to N inputs) and cumulative N leaching as compared to CON; and 4) ORG significantly increased relative N budgets and had the potential to accumulate organic N. These results indicated that under the condition of similar N inputs, long-term organic vegetable cultivation could reduce N leaching and increase soil organic N stock, thus may be a feasible strategy to improve greenhouse vegetable production in northern China.